Abdelkader Merah was said to have been close to the Jewish school where his 23-year-old sibling gunned down a Rabbi and three children on Monday last week.

The 29-year-old Islamic radical is also believed to have assisted his brother on two attacks in which three French paratroopers died.

A statement from the Paris Prosecutor’s Office, where he was charged, read: ‘The diligent police investigations have established the existence of grave and matching evidence that show it plausible that Abdelkader Merah participated as an accomplice in the course of crimes linked to terrorist action.’

A man comforts a pupil after the shootings in Toulouse (Picture: Reuters)

A police source added: ‘Signals from Abdelkader’s mobile phone were emitted close to the school at the time of the murders.’

Merah denies the accusations and was remanded in custody by an anti-terror judge after the hearing in the French capital.

It is claimed Merah helped steal the Yamaha motorbike used in the attacks and that he also knew about the arsenal of weapons his brother was storing.

He is said to have been âvery proudâ of his brother, who was killed on Thursday during a shoot-out with police.